/**
         * 2. Auto-Classify Text Content
         * Scans text nodes and wraps them safely.
         */
        const processedNodes = new WeakSet();

        function classifyText(node) {
            // Only process common content containers to avoid breaking layout structures
            const validContainers = '.entry-content, .post-content, .page-content, .article-section';
            if (node.nodeType === 1 && !node.closest(validContainers) && !node.matches(validContainers)) return;

            const walker = document.createTreeWalker(node, NodeFilter.SHOW_TEXT, null, false);
            let textNode;
            const nodesToReplace = [];

            while (textNode = walker.nextNode()) {
                const parent = textNode.parentElement;
                if (!parent || processedNodes.has(textNode)) continue;
                
                // Skip structural and script elements
                if (/^(SCRIPT|STYLE|TEXTAREA|NOSCRIPT|IFRAME|BUTTON|INPUT)$/.test(parent.tagName)) continue;
                if (parent.classList.contains('en') || parent.classList.contains('gr')) continue;

                const text = textNode.nodeValue.trim();
                if (text.length < 1) continue;

                const hasGreek = /[\u0370-\u03FF\u1F00-\u1FFF]/.test(text);
                const hasEnglish = /[a-zA-Z]/.test(text);

                if (hasGreek || hasEnglish) {
                    nodesToReplace.push({
                        node: textNode,
                        lang: hasGreek ? 'gr' : 'en'
                    });
                }
            }

            // Use requestAnimationFrame to avoid "Layout Thrashing" and recursive observer triggers
            requestAnimationFrame(() => {
                nodesToReplace.forEach(item => {
                    if (item.node.parentNode) {
                        const span = document.createElement('span');
                        span.className = item.lang;
                        span.textContent = item.node.nodeValue;
                        processedNodes.add(span); 
                        item.node.parentNode.replaceChild(span, item.node);
                    }
                });
            });
        }

        document.addEventListener('DOMContentLoaded', function() {
            var savedLang = localStorage.getItem('ag_lang') || 'en';
            document.body.classList.add('lang-' + savedLang);
            syncToggleButtons(savedLang);

            const content = document.body;
            classifyText(content);

            const observer = new MutationObserver(mutations => {
                for (const mutation of mutations) {
                    for (const node of mutation.addedNodes) {
                        if (node.nodeType === 1) classifyText(node);
                    }
                }
            });

            observer.observe(content, { childList: true, subtree: true });
        });<?xml version="1.0" encoding="UTF-8"?>
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